What Is Moyamoya?
Reviewed: Dr. Gromatzky
2. Causes
The causes of moyamoya are not at all well understood. However, that it is most common in China, Japan, and Korea suggests that there is a genetic link to the disease. Researchers continue to perform studies to try and improve our understanding of the condition and what causes it.
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In addition to genetics, there are also some medical conditions that have been linked to moyamoya. These include sickle cell anemia and Down’s syndrome. Neurofibromatosis type 1, which causes tumors in the skin and elsewhere, is also linked with moyamoya disease. Another is hyperthyroidism, which means the thyroid gland is more active than usual.
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